Perhaps you should try some spelling variations:
"classical physiological" » "clasica physiological", "classics physiological", "classic physiological"
"classical psychological" » "clasica psychological", "classics psychological", "classic psychological"
"classical sociological" » "clasica sociological", "classics sociological", "classic sociological", "classical sociologica", "classical sociologicas", "classical sociologia"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("classical physiological") OR ((("classical psychological") OR ("classical sociological"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"classical physiological\") OR (((\"classical psychological\") OR (\"classical sociological\"))))*".
• Removing quotes may allow a broader search: (( classical physiological ) OR ((( classical psychological ) OR ( classical sociological ))))*.